QUIDEL CORP's ticker is and the CUSIP is 74838J951. A total of 4 filers reported holding QUIDEL CORP in Q3 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $423,000 | – | 3,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 40,800 | $7,330,000 | 0.01% |
| SIMPLEX TRADING, LLC | 306 | $5,497,000 | 0.01% |
| IMC-Chicago, LLC | 14,600 | $2,623,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |